Versions/LU-347059

Update Information

 * Fix crash when opening the colony summary screen if there were no "summaried" colonies available
 * Improve imperative-earned animation
 * Skill Stations are no longer valid targets for changing skills (Dupes now use the portal). Fixes a crash when they would try.
 * Updated oxyfern seed art
 * Lights no longer "linger" around the world
 * Research screen zoom takes UI scale in to account. Added zoom buttons
 * Fix crash when loading timelapses if a colony has 'png' in the name
 * New Park Sign artwork and building size
 * Added a bunch of missing strings
 * Updated Desalinator description to correctly not mention steam
 * Dig errands are correctly removed when a building construction is cancelled